state gov UP Police Assistant Operator (Radio Cadre) Mock Test Physics Electric Potential Potential Energy in an External Field
Two charges q1 and q2 are placed at a distance r from each other. What is the potential energy of the system? (assume potential energy to be zero when they were a large distance apart)
1
\(\frac {q_1 q_2}{4 \pi \epsilon_0r}\)
2
\(\frac {q_1 q_2}{4 \pi \epsilon_0r^2}\)
3
\(\frac { q_2}{4 \pi \epsilon_0r}\)
4
\(\frac {q_1 }{4 \pi \epsilon_0r}\)